We use cookies to provide you with a better service. Carry on browsing if you’re happy with this or read more about our cookie policy and privacy policy.
Therapeutic level for the treatment of headache is 50 mg/L. All patients who have taken a deliberate overdose should be referred for assessment.
HDL-cholesterol is not reported if triglyceride levels are >20mmol/L.
Reference ranges Therapeutic range (epilepsy) 1 – 4 mg/L Mood stabiliser 1 – 15 mg/L (Ranges relate to trough samples taken pre-dose or minimum 6 hours
Reference ranges Aldosterone:Renin Ratio Renin (mU/L): Upright 5.4 - 60, Supine 5.4 - 30 Aldosterone (pmol/L): Upright 100 - 800, Supine 100 - 450 ARR:
Reference ranges Serum/plasma total calcium: 2.20–2.63 mmol/L (NB: apparently raised total calcium levels up to 3.00 mmol/L in 0–3 month infants and up
If the measured concentration is <15mg/L, consider increasing the dose or reducing the dosage interval - see Vancomycin Policy.
Reference ranges Chromogranin A: 0-60 pmol/L Chromogranin B: 0-150 pmol/L Further information To learn more about chromogranins visit Lab Tests Online
Reference ranges Male: Less than 11.8 ng/L Female: Less than 4.6 ng/L Further information To find out more about calcitonin access Lab Tests OnLine
Reference ranges 9am: ≤50 ng/L Midnight: ≤10 ng/L All results must be interpreted in the context of the current cortisol levels, the time of sample collection
Reference ranges The adult reference range for CSF lactate is 1.1 – 2.4 mmol/L.
Result (kUA/l)
Reference range (µmol/L)
mg/L
If your blood glucose level is still less than 4mmol/L, repeat Step 2. If your blood glucose level is more than 4mmol/L, move to Step 5. 5.
Apolipoprotein B (g/L)
Severe anaemia (haemoglobin <70g/L) without haematinic deficiency Severe neutropenia (neutrophils <0.5x109/L) Severe thrombocytopenia (platelets <20x109
Reference ranges 0-15 umol/L Note: Undetectable homocysteine levels have been observed in patients with molybdenum cofactor deficiency or isolated sulphite
For example, if a “serum rhubarb” result of 64 µmol/L is reported by the laboratory, the result could actually lie somewhere between 61 and 67 µmol/L once
0.15 - 0.45g/l